CN106303805A - Broadband sound chamber module - Google Patents
Broadband sound chamber module Download PDFInfo
- Publication number
- CN106303805A CN106303805A CN201610643380.XA CN201610643380A CN106303805A CN 106303805 A CN106303805 A CN 106303805A CN 201610643380 A CN201610643380 A CN 201610643380A CN 106303805 A CN106303805 A CN 106303805A
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- China
- Prior art keywords
- module
- medium
- sound
- sound chamber
- microspeaker
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005236 sound signal Effects 0.000 claims abstract description 15
- 230000005855 radiation Effects 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The present invention provides a kind of broadband sound chamber module, including high frequency module and medium and low frequency module；Described high frequency includes Microspeaker；Described medium and low frequency module includes medium and low frequency speaker and sound chamber, and described sound chamber is in order to boombox；The outlet sound mouth in order to described medium and low frequency speaker radiation sound is offered on described sound chamber；Described Microspeaker and medium and low frequency speaker are connected in same voicefrequency circuit, and described Microspeaker receives the HFS of audio signal, and described medium and low frequency speaker receives the medium and low frequency part of audio signal, speak realizing audio frequency of broad band.The broadband sound chamber module of the present invention, it is possible to realizing audio frequency of broad band and raise one's voice, audio frequency effect becomes fuller.
Description
Technical field
The present invention relates to Audiotechnica, particularly to be a kind of realize audio frequency of broad band play broadband sound chamber mould
Group.
Background technology
The most increasing electronic equipment, has the demand of audio external play function, particularly some miniaturized electronic devices,
E.g. mobile device.Along with mobile device pursue good looking appearance, take up room little, with mobile phone, as a example by panel computer, speaker
Outlet sound mouth spoken by original front and back and changed side frame into and speak form, referring to Fig. 1 and Fig. 2, a speaker cavity 2 ' sets
Putting in fuselage 1 ' bottom, sound hole 3 ' is opened on side frame.Although so making whole mobile phone or panel computer see in appearance
Carry out more fashion, but but far short of what is expected than original head-on radiation form on audio performance, and the design of such structure makes speaker
High-frequency cut-off frequency the lowest, high frequency performance is very poor, referring to Fig. 3, can also normally work in medium and low frequency part, but at high frequency
Part cannot perfect be reset so that the bandwidth of product seriously reduces, and operating frequency is in high-frequency cut-off frequency Fh ' after frequency
Response dramatic decrease, such bandwidth is the most not enough, the problem that simultaneously also can bring distortion spike at this frequency field.
Summary of the invention
The present invention provides a kind of broadband sound chamber module, it is possible to realizing audio frequency of broad band and raise one's voice, audio frequency effect becomes more
Full.
For solving the problems referred to above, the present invention provides a kind of broadband sound chamber module, including high frequency module and medium and low frequency module；
Described high frequency includes Microspeaker；Described medium and low frequency module includes medium and low frequency speaker and sound chamber, and described sound chamber is in order in built-in
Woofer；The outlet sound mouth in order to described medium and low frequency speaker radiation sound is offered on described sound chamber；Described Microspeaker
Be connected in same voicefrequency circuit with medium and low frequency speaker, described Microspeaker receive audio signal HFS, described in
Woofer receives the medium and low frequency part of audio signal, speaks realizing audio frequency of broad band.
According to one embodiment of present invention, described high frequency module and medium and low frequency mould splits every being arranged on same fuselage,
The position of the outlet sound mouth in speak position and the described sound chamber of body shell correspondence Microspeaker offers sound hole.
According to one embodiment of present invention, the outlet sound mouth in speak position and the described sound chamber of described Microspeaker is towards institute
The side frame stating body shell is arranged, and the position of speak described in the side frame correspondence of body shell position and outlet sound mouth is offered
State sound hole, speak realizing side frame audio frequency of broad band.
According to one embodiment of present invention, the outlet sound mouth in speak position and the described sound chamber of described Microspeaker is arranged on
Position on body shell is on same side or not on same side.
According to one embodiment of present invention, the outlet sound mouth in described sound chamber is arranged towards the side frame of described body shell,
The position side frame setting not towards described body shell of speaking of described Microspeaker.
According to one embodiment of present invention, the receiver that described Microspeaker uses fuselage equipment self to be configured comes real
Existing.
According to one embodiment of present invention, the position sound hole corresponding with outlet sound mouth of speaking described in all has several.
According to one embodiment of present invention, the Microspeaker of described high frequency module does not set sound chamber.
According to one embodiment of present invention, described Microspeaker is Microspeaker or receiver.
According to one embodiment of present invention, the front end circuit of described Microspeaker connects and has high pass filter, with filter
Medium and low frequency part except audio signal.
According to one embodiment of present invention, the front end circuit of described medium and low frequency speaker connects and has low pass filter,
To filter the HFS in audio signal；The cut-off frequency of described low pass filter cutting more than or equal to described high pass filter
Only frequency.
After using technique scheme, the present invention has the advantages that compared to existing technology
The deficiency raised one's voice high frequency with independent Microspeaker compensates, and uses the form of frequency dividing work to be operated,
Medium and low frequency speaker is responsible for medium and low frequency part, and Microspeaker is responsible for medium and low frequency speaker self playback treble portion the most out,
Whole sound chamber module can ideally be reset the audio signal of more wide-band.
The outlet sound mouth in speak position and the sound chamber of Microspeaker is set to the position at alignment fuselage side frame, especially solves
The high frequency distortion problem of side frame sounding.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing a kind of speaker cavity module；
Fig. 2 is the structural representation of the side frame of the speaker cavity module of Fig. 1；
Fig. 3 is the audio frequency broadcasting work frequency response schematic diagram of the speaker cavity module of Fig. 1；
Fig. 4 is the structural representation of the broadband sound chamber module of the embodiment of the present invention；
Fig. 5 is the structural representation of the side frame of the broadband sound chamber module of the embodiment of the present invention；
Fig. 6 is the audio frequency broadcasting work frequency response schematic diagram of the speaker cavity module of the embodiment of the present invention.
Detailed description of the invention
Understandable, below in conjunction with the accompanying drawings to the present invention for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
Detailed description of the invention be described in detail.
Elaborate a lot of detail in the following description so that fully understanding the present invention.But the present invention can be with
Much being different from alternate manner described here to implement, those skilled in the art can be in the situation without prejudice to intension of the present invention
Under do similar popularization, therefore the present invention is not limited by following public being embodied as.
Referring to Fig. 4, the broadband sound chamber module of the embodiment of the present invention, including high frequency module and medium and low frequency module.High frequency mould
Group and medium and low frequency module are separate, and the position of cavity and shape are without limitation.High frequency module includes Microspeaker 31, in low
Frequently module includes sound chamber 22 and medium and low frequency speaker 21, and sound chamber 22 is in order to built-in medium and low frequency medium and low frequency speaker 21.Microspeaker
31 directly radiate sound.Sound chamber 22 offers outlet sound mouth (unmarked in figure), is used for the medium and low frequency speaker 21 realizing in cavity
To external radiation sound.The quantity of outlet sound mouth and shape are without limitation.Pipeline of speaking also can be connected, with preferably at outlet sound mouth
Control to speak direction, and the quantity of pipeline of speaking and shape the most without limitation, can be straight tube or bend pipe or erose
Pipeline etc..
Wherein, Microspeaker 31 and medium and low frequency speaker 21 are connected in same voicefrequency circuit.This voicefrequency circuit can be
Conventional voicefrequency circuit, the audio signal of generation is input in the front end circuit of Microspeaker 31 and medium and low frequency speaker 21 carry out
Audio frequency pretreatment.Microspeaker 31 receives the HFS of audio signal, and medium and low frequency speaker 21 receives in audio signal low
Frequently part, speaks realizing audio frequency of broad band.In other words, Microspeaker 31 compensate for the high frequency deficiency of medium and low frequency speaker 21
Defect, promotes the high frequency performance of sound chamber module, widens audio work frequency band so that audio frequency effect is the fullest.
In one embodiment, high frequency module and medium and low frequency mould splits every being arranged on same fuselage 1, in general in order to
For the sake of attractive in appearance, cavity is provided in fuselage 1 enclosure interior.With continued reference to Fig. 4, Microspeaker 31 and sound chamber 22, medium and low frequency are raised
Sound device 21 is arranged on same fuselage 1.The position of the outlet sound mouth in speak position and the sound chamber 22 of fuselage 1 housing correspondence Microspeaker 31
Put and offer sound hole.Microspeaker 31 is directly by sound hole sounding, and the medium and low frequency speaker 21 in sound chamber 22 is from outlet sound mouth radiation sound
Sound is to outside sound hole, it is achieved sounding.Depending on the position with speak position and outlet sound mouth, the position of sound hole, if speaking position and speaking
Mouthful towards fuselage 1 housing front or side or side frame, then sound hole is correspondingly positioned at fuselage 1 housing front or side or side frame.
Referring to Fig. 5, further, the outlet sound mouth in speak position and the sound chamber 22 of Microspeaker 31 is towards fuselage 1 housing
Side frame is arranged, and the speak position of position and outlet sound mouth of the side frame correspondence of fuselage 1 housing offers sound hole 11 and sound hole 12, with
Realize side frame audio frequency of broad band to speak.Concrete can be such as sound producing hole 11 and sound on the lower frame of fuselage 1 housing side frame
Hole 12.Both ensured the appearance looks elegant of fuselage 1, solve simultaneously existing fuselage 1 side frame speak exist high frequency cannot play, frequency band
Short of width, the problem of distortion spike, promote audio experience for a user, and process costs be relatively low, has well
Trade benefit.
Optionally, the position that the outlet sound mouth in speak position and the sound chamber 22 of Microspeaker 31 is arranged on fuselage 1 housing exists
On same side or not on same side.In other words, in general the side frame of fuselage 1 housing has four sides, miniature loudspeaker
31 the outlet sound mouth in speak position and sound chamber 22 can be on different sides, it is also possible on different sides.
The particular location at the position of speaking of Microspeaker 31 without limitation, can be arranged on the side frame of body shell
On, it is also possible to not on side frame.Optionally, the outlet sound mouth in sound chamber is arranged towards the side frame of body shell, Microspeaker 31
Speak position not towards fuselage 1 housing side frame arrange.
In one embodiment, the receiver that Microspeaker 31 can use fuselage equipment self to be configured realizes.This
Sample, on the basis of the parts not increasing equipment or space, only does certain adjustment to circuit so that the HFS of audio frequency and
Low frequency part separately output, can realize high frequency and supply, it is provided that higher audio quality.
The position of speaking of Microspeaker 31 sound hole 11 corresponding with the outlet sound mouth in sound chamber 22, sound hole 12 can have several
Hole, naturally it is also possible to be respectively one.Fuselage 1 can be can the electronic equipment raised one's voice of audio frequency, such as mobile phone, panel computer
Deng, but it is not limited to this.
Preferably, the Microspeaker of high frequency module does not set sound chamber, the Microspeaker being only separately provided.Microspeaker 31 can
Think that Microspeaker or receiver, the medium and low frequency speaker 21 arranged in medium and low frequency cavity 2 can be the speaker that fuselage is conventional.
Microspeaker is the least, thus does not account for a lot of space of fuselage, can be close to side frame, will not produce the configuration of fuselage interior space
Considerable influence.
The front end circuit of Microspeaker 31 connects and has high pass filter, to filter the medium and low frequency part of audio signal.In
The front end circuit of woofer 21 connects and has low pass filter, to filter the HFS in audio signal；Low-pass filtering
The cut-off frequency of device is more than or equal to the cut-off frequency of high pass filter, thus can normally work over the entire frequency band.Low pass filtered
Ripple device and high pass filter can be conventional wave filter, and are also can be according to conventional filtering with the connection of front end circuit
Device connected mode connects, and specifically repeats no more.
Medium and low frequency speaker 21 conventional in sound chamber 22 is responsible for middle bass zone, and front end circuit adds low pass filter, makes
Must cannot input to medium and low frequency speaker 21 at the signal after low-pass cut-off frequencies, Microspeaker 31 is responsible for high-frequency region, front
Putting interpolation high pass filter, only receive the frequency signal that high pass cut off frequency is later, such Microspeaker 31 and medium and low frequency are raised one's voice
Device 21 works simultaneously and just can significantly be promoted by bandwidth, as shown in Figure 6, after medium and low frequency module and the cooperation of high frequency module,
Sound chamber module bandwidth substantially broadens, after high-frequency cut-off frequency Fh of working band has had been moved to 13kHz, the most whole
The audio frequency effect of sound chamber module becomes fuller.
Although the present invention is open as above with preferred embodiment, but it is not for limiting claim, any this area
Technical staff without departing from the spirit and scope of the present invention, can make possible variation and amendment, therefore the present invention
Protection domain should be defined in the range of standard with the claims in the present invention.
Claims (11)
1. a broadband sound chamber module, it is characterised in that include high frequency module and medium and low frequency module；Described high frequency includes miniature
Loudspeaker；Described medium and low frequency module includes medium and low frequency speaker and sound chamber, and described sound chamber is in order to built-in medium and low frequency speaker；Described sound
The outlet sound mouth in order to described medium and low frequency speaker radiation sound is offered on chamber；Described Microspeaker and medium and low frequency speaker connect
In same voicefrequency circuit, described Microspeaker receives the HFS of audio signal, and described medium and low frequency speaker receives audio frequency
The medium and low frequency part of signal, speaks realizing audio frequency of broad band.
2. broadband sound chamber as claimed in claim 1 module, it is characterised in that described high frequency module and medium and low frequency mould splits every
Being arranged on same fuselage, the position of the outlet sound mouth in speak position and the described sound chamber of body shell correspondence Microspeaker offers
Sound hole.
3. broadband sound chamber as claimed in claim 2 module, it is characterised in that the position and described of speaking of described Microspeaker
The outlet sound mouth in sound chamber is arranged towards the side frame of described body shell, speaks position and go out described in the side frame correspondence of body shell
The position of sound mouth offers described sound hole, speaks realizing side frame audio frequency of broad band.
4. as claimed in claim 2 or claim 3 broadband sound chamber module, it is characterised in that described Microspeaker speak position and
The position that the outlet sound mouth in described sound chamber is arranged on body shell is on same side or not on same side.
5. broadband sound chamber as claimed in claim 2 module, it is characterised in that the outlet sound mouth in described sound chamber is towards described fuselage
The side frame of housing is arranged, the position side frame setting not towards described body shell of speaking of described Microspeaker.
6. broadband sound chamber as claimed in claim 1 module, it is characterised in that described Microspeaker uses fuselage equipment self
The receiver configured realizes.
7. as claimed in claim 2 or claim 3 broadband sound chamber module, it is characterised in that described in position of speaking corresponding with outlet sound mouth
Sound hole all have several.
8. broadband sound chamber as claimed in claim 1 module, it is characterised in that the Microspeaker of described high frequency module does not set sound
Chamber.
9. broadband sound chamber as claimed in claim 1 module, it is characterised in that described Microspeaker is Microspeaker or is subject to
Words device.
10. broadband sound chamber as claimed in claim 1 module, it is characterised in that connect in the front end circuit of described Microspeaker
It is connected to high pass filter, to filter the medium and low frequency part of audio signal.
11. broadband sound chamber as claimed in claim 8 modules, it is characterised in that the front end circuit of described medium and low frequency speaker
Middle connection has low pass filter, to filter the HFS in audio signal；The cut-off frequency of described low pass filter is more than
Cut-off frequency in described high pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610643380.XA CN106303805A (en) | 2016-08-08 | 2016-08-08 | Broadband sound chamber module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610643380.XA CN106303805A (en) | 2016-08-08 | 2016-08-08 | Broadband sound chamber module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106303805A true CN106303805A (en) | 2017-01-04 |
Family
ID=57666545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610643380.XA Pending CN106303805A (en) | 2016-08-08 | 2016-08-08 | Broadband sound chamber module |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937225A (en) * | 2017-04-17 | 2017-07-07 | 维沃移动通信有限公司 | A kind of horn structure and mobile terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2534759Y (en) * | 2002-03-07 | 2003-02-05 | 邱金国 | Improvement of voice box structure |
| CN201438741U (en) * | 2009-03-31 | 2010-04-14 | 富准精密工业(深圳)有限公司 | Sounding structure and electronic device employing same |
| CN203225876U (en) * | 2013-04-16 | 2013-10-02 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN103491482A (en) * | 2013-09-04 | 2014-01-01 | 张家港保税区润桐电子技术研发有限公司 | Audio processing device for mobile terminals |
| CN205946129U (en) * | 2016-08-08 | 2017-02-08 | 上海安费诺永亿通讯电子有限公司 | Wide band voiced sound chamber module |
-
2016
- 2016-08-08 CN CN201610643380.XA patent/CN106303805A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2534759Y (en) * | 2002-03-07 | 2003-02-05 | 邱金国 | Improvement of voice box structure |
| CN201438741U (en) * | 2009-03-31 | 2010-04-14 | 富准精密工业(深圳)有限公司 | Sounding structure and electronic device employing same |
| CN203225876U (en) * | 2013-04-16 | 2013-10-02 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN103491482A (en) * | 2013-09-04 | 2014-01-01 | 张家港保税区润桐电子技术研发有限公司 | Audio processing device for mobile terminals |
| CN205946129U (en) * | 2016-08-08 | 2017-02-08 | 上海安费诺永亿通讯电子有限公司 | Wide band voiced sound chamber module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937225A (en) * | 2017-04-17 | 2017-07-07 | 维沃移动通信有限公司 | A kind of horn structure and mobile terminal |
| CN106937225B (en) * | 2017-04-17 | 2019-12-24 | 维沃移动通信有限公司 | Horn structure and mobile terminal |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
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| RJ01 | Rejection of invention patent application after publication |